Aliso Canyon Disaster Health Research Study

03/31/2026

Recruitment for the Resident Health Survey and Clinical Health Assessments is underway.

The UCLA Aliso Canyon Disaster Health Research Study encourages you to participate in a confidential health survey of people who lived in the area since the October 2015 – February 2016 blowout.

Keep an eye on your mailbox for an invitation letter. The letter includes instructions on how to participate in the survey.

For more information, visit:

The UCLA Aliso Study Team is conducting a Resident Health Survey to understand the short- and long-term health effects of the blowout.

12/02/2025

A decade after the largest methane leak in U.S. history, a new study by UCLA and NYU researchers sheds light on the mental health impacts of the Aliso Canyon natural gas disaster.

Read more below.

10/25/2025

We will be at the 10-year Anniversary town hall to share study updates and summarize recently released results.

UCLA researchers are expected to present findings from their continuing health assessment of the disaster’s impacts.

10/18/2025

We're at the Granada Hills Street Fair today- come say hi and learn more about the Health Study!

09/15/2025

09/15/2025

A UCLA study in the journal Science Advances also found a likely increase in miscarriages around the methane leak in the northern San Fernando Valley in 2015.

09/12/2025

Please see the announcement below regarding the first published study from the Aliso Canyon Disaster Health Research Study. We encourage you to share this with your networks.

Peer-reviewed study finds that pregnant women living near the Aliso Canyon gas blowout were more likely to have babies with low birth weight.

12/19/2024

Please see the year-end Community letter from the Aliso Canyon Disaster Health Research Study below. We encourage you to share this with your networks.

Sending warm wishes for a joyous holiday season.

The Aliso Canyon Disaster Health Research Study team shares a year-end community update, including health analysis and exposure studies.

08/02/2024

Please see this recent Los Angeles Daily News article on upcoming activities of the Aliso Canyon Disaster Health Research Study!

UCLA researchers will conduct the clinical assessments of neighbors impacted by the Aliso Canyon gas leak.

07/08/2024

Please see the Mid-Year Community Update for the Aliso Canyon Disaster Health Research Study below.
We encourage you to share this with your networks.

June 28, 2024 Dear Community Members and Families of the Aliso Canyon Disaster area, We hope this letter finds you well. We write today to update you on Aliso Canyon Disaster Health Research Study p

02/23/2024

UCLA is seeking participants for online focus groups about the Aliso Canyon Natural Gas Disaster.

We want to hear from community members who lived through the disaster to better understand its impacts on health, well-being, and other aspects of community members' lives.

Participants will receive a $125 Amazon gift card. If you would like to apply, visit https://alisostudy.ucla.edu/community-updates/focus-group

To be eligible for selection, participants must be at least 18 years of age and have lived in the vicinity of the Aliso Canyon blowout at the start of the disaster in October 2015.

The voluntary focus groups will take approximately 90 minutes and will involve small groups of people sharing their experiences and thoughts about the impacts of the disaster.

Visit our website for full details about the Health Study at https://alisostudy.ucla.edu/